Well-known member

One interesting item. It’s been about 24 hours since opening/pump running....as you can see my picture, all green and algae originally.

However, resting psi remains stable. Return jets look strong. I really was anticipating multiple backwashes in the first 24 hours - especially given how green the pool was.... yet I haven’t even done one. Is this normal?

Nice! As for the backwashing, hard to tell. Much depends on the amount of material that needs ot be collected, size of the filter, etc. I would't worry too much about it for now. But not sure if this came up before ... does your pressure gauge fall to zero when the system is turned off? Just want to make sure the needle isn't stuck or bad gauge at this point.

Well-known member

Nice! As for the backwashing, hard to tell. Much depends on the amount of material that needs ot be collected, size of the filter, etc. I would't worry too much about it for now. But not sure if this came up before ... does your pressure gauge fall to zero when the system is turned off? Just want to make sure the needle isn't stuck or bad gauge at this point.

This morning l, FC dropped to 9 - so before adding more to get to SLAM target of 12, I ran PH (since below 10 FC) and looks like it climbed again - around 7.6. Should I had more MA or just keep pushing with the FC?

This morning l, FC dropped to 9 - so before adding more to get to SLAM target of 12, I ran PH (since below 10 FC) and looks like it climbed again - around 7.6. Should I had more MA or just keep pushing with the FC?

Whatever is cheapest. I saw big bags of baking soda in the pool section at Walmart the other day. They probably also have big bags by the flour and such at Costco and Sam's and the like. Or grab a few boxes at the grocery store. TA isn't really a critical measurement. So if you target 60 and it asks for 6½ lbs, add 6 or 7, whichever is handiest. Maybe it'll be a 12 lb bag and you can eyeball half a bag. It doesn't have to be exact.

Well-known member

Whatever is cheapest. I saw big bags of baking soda in the pool section at Walmart the other day. They probably also have big bags by the flour and such at Costco and Sam's and the like. Or grab a few boxes at the grocery store. TA isn't really a critical measurement. So if you target 60 and it asks for 6½ lbs, add 6 or 7, whichever is handiest. Maybe it'll be a 12 lb bag and you can eyeball half a bag. It doesn't have to be exact.

1. Thank you! I’m assuming unscented too - I’ve seen a few baking soda containers labeled as “unscented” so not sure what the default is.

2. You brought up a point that I had a question on. After the SLAM is complete, I’m going to raise the CYA. I recently did this for the SLAM to get it to 30 (sock currently in the skimmer). In order to do that - I had to use about 2.5 lbs of cya (out of a 5 lb bag). How do you accurately measure cya? In this case, I could just eyeball it since it was about half the bag, but in the future, if Pool math calls for more precise measurements, what’s the easier way to measure cya?

1. Thank you! I’m assuming unscented too - I’ve seen a few baking soda containers labeled as “unscented” so not sure what the default is.

2. You brought up a point that I had a question on. After the SLAM is complete, I’m going to raise the CYA. I recently did this for the SLAM to get it to 30 (sock currently in the skimmer). In order to do that - I had to use about 2.5 lbs of cya (out of a 5 lb bag). How do you accurately measure cya? In this case, I could just eyeball it since it was about half the bag, but in the future, if Pool math calls for more precise measurements, what’s the easier way to measure cya?

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